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Finding the Fourth Proportional to 359,240.22, 538,865.28 and 172,207.98

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Solution

The fourth proportional to 359,240.22, 538,865.28 and 172,207.98 is: 258,314.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,240.22 : 538,865.28 = 172,207.98 : x
  2. Step 2: Convert to fraction form
    359,240.22/538,865.28 = 172,207.98/x
  3. Step 3: Cross multiply
    359,240.22x = 538,865.28 × 172,207.98
  4. Step 4: Simplify right side
    359,240.22x = 92,796,901,360.93
  5. Step 5: Solve for x
    x = 92,796,901,360.93/359,240.22
  6. Step 6: Final answer
    x = 258,314.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.